Silencing and damping electromechanical equipment and construction method

Abstract

The invention relates to electromechanical equipment for noise elimination and vibration reduction and a construction method, and belongs to the technical field of noise elimination and vibration reduction. The electromechanical equipment for noise elimination and vibration reduction comprises a fixed ring seat, a base and a diesel generator set installed on the base, the base is located in the fixed ring seat, and a rotating ring is rotationally arranged on the fixed ring seat in the vertical direction; the diesel generating set is located in the rotating ring, the rotating ring is detachably connected with a sound insulation cover, the diesel generating set is located in the sound insulation cover, the inner wall of the sound insulation cover is provided with a plurality of protrusions and recesses, and the inner wall of the sound insulation cover is covered with a first sound absorption layer. The fixing ring base is provided with a driving assembly used for driving the rotating ring to drive the sound insulation cover to rotate. In the working process of the diesel generating set, noise elimination and sound insulation are facilitated, interference to surrounding constructors is reduced, and the effect of ensuring the comfort of the construction environment to a certain extent is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of noise reduction and vibration reduction, and in particular to an electromechanical device and a construction method for noise reduction and vibration reduction. Background Art

[0002] Construction sites are usually located in areas not covered by the power grid. In the absence of power grid supply, diesel generators are generally required to provide stable power for on-site equipment to ensure that construction equipment, lighting, tools and other facilities can operate normally.

[0003] Diesel generators are usually installed in the machine room of the construction site, and the exhaust pipes of the diesel generators are installed outside the machine room. However, diesel generators will generate noise during operation, causing interference to the surrounding construction workers. Summary of the invention

[0004] In order to help with noise reduction and sound insulation during the operation of the diesel generator set, so as to reduce interference to surrounding construction personnel and ensure the comfort of the construction environment to a certain extent, the present application provides a sound-absorbing and vibration-reducing electromechanical equipment and a construction method.

[0005] In the first aspect, the present application provides an electromechanical device for noise reduction and vibration reduction, which adopts the following technical solution: A sound-absorbing and vibration-reducing electromechanical equipment comprises a fixed ring seat, a base and a diesel generator set mounted on the base, wherein the base is located in the fixed ring seat, a rotating ring is provided on the fixed ring seat for rotation in a vertical direction, the diesel generator set is located in the rotating ring, a soundproof cover is detachably connected to the rotating ring, the diesel generator set is located in the soundproof cover, the inner wall of the soundproof cover has a plurality of protrusions and depressions, the inner wall of the soundproof cover is covered with a first sound-absorbing layer, and the fixed ring seat is provided with a driving assembly for driving the rotating ring to drive the soundproof cover to rotate.

[0006] Preferably, the driving assembly includes a ring gear arranged on a rotating ring and a transmission member arranged on a fixed ring seat, the ring gear is arranged concentrically with the rotating ring, and the transmission member is used to drive the ring gear to swing back and forth when the diesel generator set vibrates horizontally.

[0007] Preferably, the transmission member includes a transmission rod hinged on a fixed ring seat and a transmission tooth segment arranged on the transmission rod, the hinge axis of the transmission rod is parallel to the rotation axis of the rotating ring, the transmission tooth segment is meshed with the gear ring, and the end of the transmission rod away from the transmission tooth segment is connected to the diesel generator set.

[0008] Preferably, the distance from one end of the transmission rod close to the diesel generator set to its own hinge point is smaller than the distance from one end of the transmission rod close to the transmission tooth segment to its own hinge point.

[0009] Preferably, the sound insulation cover comprises two cover bodies spliced ​​to each other, the protrusions and recesses are both arranged on the inner wall of the cover body, a connecting piece is arranged on the cover body, a slot for plugging and cooperating with the connecting piece is provided on the rotating ring, a limiting piece is provided on the connecting piece, a limiting groove for snap-fitting with the limiting piece is provided on the inner wall of the slot, and notches are provided on one side of the top ends of the two cover bodies close to each other, and the two notches form a through hole, and the through hole is for the exhaust pipe of the diesel generator set to pass through.

[0010] Preferably, a ventilation hole is opened on the cover body, and a silencer air duct is connected to the ventilation hole. A silencer is provided on the silencer air duct. Two groups of current limiting groups are relatively arranged in the silencer air duct, and each group of the current limiting groups includes a plurality of current limiting plates arranged at intervals along the length direction of the silencer air duct, and the current limiting plates of the two groups of the current limiting groups are staggered.

[0011] Preferably, a second sound absorbing layer is provided on the current limiting plate.

[0012] Preferably, the sound-absorbing and vibration-reducing electromechanical equipment further comprises a machine room, wherein the base and the fixed ring seat are both installed in the machine room, and a sound insulation layer is provided on the inner wall of the machine room.

[0013] Preferably, a vibration damping seat is provided in the machine room, the vibration damping seat is located in the fixed ring seat, and the base is provided on the vibration damping seat.

[0014] In the second aspect, the present application provides a construction method for electromechanical equipment with noise reduction and vibration reduction, which adopts the following technical solution: A construction method for electromechanical equipment with noise reduction and vibration reduction comprises the following steps: A base and a fixed ring seat are sequentially installed at a desired position on the construction site, wherein the fixed ring seat has a rotating ring and a driving assembly; Install a diesel generator set on the base; A soundproof cover is installed on the rotating ring, and the soundproof cover is arranged outside the diesel generator set.

[0015] In summary, this application includes the following beneficial technical effects: After the diesel generator set is installed on the base, a soundproof cover is installed on the rotating ring. The soundproof cover is arranged outside the diesel generator set so that when the diesel generator set is working, the soundproof cover can block the propagation of noise to a certain extent. The driving assembly drives the rotating ring to drive the soundproof cover to rotate, making the soundproof cover dynamic, thereby facilitating full absorption and scattering of multiple noise sources of the diesel generator set and unevenly distributed noise to reduce noise reflection. It can help to eliminate noise and soundproof during the operation of the diesel generator set to reduce interference with surrounding construction personnel and ensure the comfort of the construction environment to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the overall structure of an embodiment of the present application.

[0017] Figure 2 It is a partial structural sectional exploded diagram of an embodiment of the present application.

[0018] Figure 3 yes Figure 2 Enlarged view of part A.

[0019] Explanation of the accompanying drawings: 1. fixed ring seat; 2. base; 3. diesel generator set; 4. rotating ring; 5. sound insulation cover; 50. cover body; 51. protrusion; 52. depression; 6. gear ring; 7. transmission member; 71. transmission rod; 72. transmission gear segment; 8. connecting plate; 9. slot; 10. limit plate; 11. limit groove; 12. vent; 13. silencer air duct; 14. silencer; 15. current limiting plate; 16. machine room; 17. sound insulation layer; 171. sound insulation paint layer; 172. sound insulation mineral wool; 173. gypsum board; 18. vibration damping seat; 19. silicone pad; 20. support rod; 21. notch; 22. through hole. DETAILED DESCRIPTION

[0020] The following combination Figure 1-3 This application is described in further detail.

[0021] The present application embodiment discloses an electromechanical device for noise reduction and vibration reduction. Figure 1 and Figure 2 The electromechanical equipment for noise reduction and vibration reduction includes a machine room 16, a fixed ring seat 1, a base 2 and a diesel generator set 3. The machine room 16 is built at the required position of the construction site, and a heat dissipation window is arranged on the top of the machine room 16; the fixed ring seat 1 is a circular ring, and the fixed ring seat 1 is fixedly installed in the machine room 16. A silicone pad 19 is filled between the fixed ring seat 1 and the bottom wall of the machine room 16, and the silicone pad 19 is arranged along the circumference of the fixed ring seat 1 to achieve vibration reduction between the fixed ring seat 1 and the bottom wall of the machine room 16; the base 2 is fixedly installed on the bottom wall of the machine room 16, the base 2 is located in the fixed ring seat 1, the diesel generator set 3 is fixedly installed on the base 2, and a through hole 22 is opened on the silicone pad 19 to facilitate the passage of the pipeline of the diesel generator set 3.

[0022] Reference Figure 1 and Figure 2, wherein a rotating ring 4 is arranged on the fixed ring seat 1 to rotate in the vertical direction, the rotating ring 4 is arranged concentrically with the fixed ring seat 1, and a ball is arranged between the rotating ring 4 and the fixed ring seat 1 to reduce the sound when the rotating ring 4 and the fixed ring seat 1 rotate relative to each other; a soundproof cover 5 is detachably connected to the rotating ring 4, and the soundproof cover 5 includes two cover bodies 50 spliced ​​together, and the cover bodies 50 are detachably connected to the rotating ring 4, and each cover body 50 has a plurality of protrusions 51 and depressions 52 on the inner wall, and a first sound-absorbing layer is covered on the inner wall of the cover body 50, and the first sound-absorbing layer can be one of a glass fiber layer, a rock wool layer, a foam layer, etc., which is not limited here. The diesel generator set 3 is located in the soundproof cover 5 spliced ​​by the two cover bodies 50, so that the diesel generator set 3 is sealed by the silicone pad 19 and the soundproof cover 5; a driving component for driving the rotating ring 4 to drive the two cover bodies 50 of the soundproof cover 5 to rotate is arranged on the fixed ring seat 1.

[0023] When in use, after the diesel generator set 3 is installed on the base 2, a soundproof cover 5 is installed on the rotating ring 4. The soundproof cover 5 is arranged outside the diesel generator set 3, so that when the diesel generator set 3 is working, the soundproof cover 5 can block the propagation of noise, and the rotating ring 4 is driven by the driving component to drive the two cover bodies 50 of the soundproof cover 5 to rotate synchronously, so that the soundproof cover 5 is dynamic, so that it can fully absorb and scatter multiple noise sources and unevenly distributed noise in the diesel generator set 3 to reduce noise reflection, and then facilitate noise elimination and sound insulation during the operation of the diesel generator set 3, so as to reduce interference to surrounding construction personnel and ensure the comfort of the construction environment to a certain extent.

[0024] Reference Figure 2 and Figure 3 In order to drive the rotating ring 4 to drive the two cover bodies 50 of the sound insulation cover 5 to rotate, the driving assembly includes a ring gear 6 and a transmission member 7. The ring gear 6 is fixed on the top wall of the rotating ring 4. The ring gear 6 is concentrically arranged with the rotating ring 4. The transmission member 7 is arranged on the fixed ring seat 1. The transmission member 7 is used to drive the ring gear 6 to swing back and forth when the diesel generator set 3 vibrates horizontally.

[0025] Reference Figure 2 and Figure 3In order to facilitate the reciprocating swing of the gear ring 6 when the diesel generator set 3 vibrates horizontally, a support rod 20 is fixed on the inner wall of the fixed ring seat 1, and the transmission member 7 includes a transmission rod 71 and a transmission tooth segment 72. The transmission rod 71 is hinged on the support rod 20, and the transmission rod 71 is located in the fixed ring seat 1. The hinge axis of the transmission rod 71 is parallel to the rotation axis of the rotating ring 4. The transmission tooth segment 72 is fixed to one end of the transmission rod 71 close to the gear ring 6. The transmission tooth segment 72 is arc-shaped, and the transmission tooth segment 72 is coaxially arranged with the transmission rod 71. The transmission tooth segment 72 is meshed with the gear ring 6; the end of the transmission rod 71 away from the transmission tooth segment 72 is fixedly connected to the diesel generator set 3 through a connecting ear and a bolt. Among them, the distance from the end of the transmission rod 71 close to the diesel generator set 3 to its own hinge point is smaller than the distance from the end of the transmission rod 71 close to the transmission tooth segment 72 to its own hinge point. Furthermore, four times the distance from the end of the transmission rod 71 close to the diesel generator set 3 to its own hinge point is equal to the distance from the end of the transmission rod 71 close to the transmission tooth segment 72 to its own hinge point.

[0026] When the diesel generator set 3 is working, the diesel generator set 3 will vibrate. Since the transmission rod 71 is rigidly fixedly connected to the diesel generator set 3, the transmission rod 71 will be driven to vibrate in the horizontal direction. When the transmission rod 71 vibrates in the horizontal direction, it will swing relative to the support rod 20 to synchronously drive the transmission tooth segment 72 to swing. Since the distance from the end of the transmission rod 71 close to the diesel generator set 3 to its own hinge point is smaller than the distance from the end of the transmission rod 71 close to the transmission tooth segment 72 to its own hinge point, it is possible to amplify the small-range swing to the large-range swing of the transmission tooth segment 72, so that the transmission tooth segment 72 drives the gear ring 6 and the rotating ring 4 to swing back and forth during the swinging process, and then the rotating ring 4 drives the sound insulation cover 5 to swing back and forth within a certain range, ensuring that the sound insulation cover 5 is always dynamic, which helps to fully absorb and scatter multiple noise sources of the diesel generator set 3 and unevenly distributed noise, so as to reduce noise reflection, help reduce noise interference to surrounding construction personnel, and ensure the comfort of the construction environment.

[0027] Reference Figure 2 and Figure 3 Specifically, a connecting piece 8 is fixed to the lower edge of the cover body 50, a slot 9 for plugging and matching with the connecting piece 8 is provided on the rotating ring 4, and a limiting piece 10 is fixed on the opposite sides of the connecting piece 8. A limiting groove 11 for engaging and matching with the limiting piece 10 is provided on the inner wall of the slot 9, and a notch 21 is provided on the top of the two cover bodies 50 close to each other, and the two notches 21 form a through hole 22 (refer to Figure 1), the through hole 22 is for the exhaust pipe of the diesel generator set 3 to pass through, and a muffler is installed on the exhaust pipe of the diesel generator set 3; the through hole 22 is filled with sound insulation materials, such as foam, rock wool, etc., to reduce the transmission of noise. In other embodiments, the connecting piece 8 and the rotating ring 4 can be connected by screws, and the cover body 50 and the rotating ring 4 can also be detachable.

[0028] Through the plug-in cooperation between the connecting piece 8 and the slot 9 and the snap-fit ​​cooperation between the limiting piece 10 and the limiting groove 11 , a detachable connection between the cover body 50 and the rotating ring 4 is achieved, which facilitates the installation and removal of the cover body 50 .

[0029] Reference Figure 2 A vent 12 is provided on the cover body 50. To facilitate silencing at the vent 12, a muffler duct 13 is connected to the vent 12. The muffler duct 13 is horizontally arranged. A muffler 14 is installed on the muffler duct 13. Two groups of current limiting groups are relatively arranged in each muffler duct 13. Each group of current limiting groups includes a plurality of current limiting plates 15. The plurality of current limiting plates 15 in each group of current limiting groups are fixedly spaced along the length direction of the corresponding muffler duct 13. The plurality of current limiting plates 15 in the two groups of current limiting groups are staggered with each other; wherein the surface of the current limiting plates 15 is covered with a second sound absorbing layer (not shown in the figure), and the second sound absorbing layer may be one of a glass fiber layer, a rock wool layer, a foam layer, etc., which is not limited here. The arrangement of multiple flow limiting plates 15 makes the flow path of the silencer air duct 13 curved, which helps the air to fully contact the second sound absorbing layer; the muffler 14 is installed on the silencer air duct 13 to silence the gas flowing through it, and the diesel generator set 3 can dissipate heat through the vent 12.

[0030] Reference Figure 1 and Figure 2 The inner wall of the machine room 16 is provided with a sound insulation layer 17, which includes a sound insulation coating layer 171, a sound insulation mineral wool 172 and a gypsum board 173. The sound insulation coating layer 171, the sound insulation mineral wool 172 and the gypsum board 173 are sequentially arranged from the outside to the inside of the inner wall of the machine room 16. By setting the sound insulation layer 17, the noise reduction effect of the diesel generator set 3 is further improved.

[0031] Reference Figure 1 and Figure 2 A vibration damping seat 18 is fixedly installed in the machine room 16. The vibration damping seat 18 is located in the fixed ring seat 1. The base 2 is fixedly installed on the vibration damping seat 18. The vibration damping seat 18 can be a vibration damping floating platform or a vibration damping platform with a plurality of damping rods on the bottom wall. No limitation is made here. The vibration damping seat 18 can effectively damp the vibration of the diesel generator set 3.

[0032] The implementation principle of the electromechanical equipment for sound insulation and vibration reduction in the embodiment of the present application is as follows: during construction, after the diesel generator set 3 is installed on the base 2, the connecting piece 8 of the cover body 50 is aligned with the slot 9 of the rotating ring 4, and the limiting piece 10 is aligned with the limiting groove 11, and the cover body 50 is moved downward to make the connecting piece 8 and the slot 9 plug-fit, and the limiting piece 10 and the limiting groove 11 snap-fit, so that the cover body 50 is installed on the rotating ring 4. At this time, the soundproof cover 5 formed by the two cover bodies 50 is arranged outside the diesel generator set 3, and the smoke exhaust pipe of the diesel generator set 3 passes through the through hole 22, and the through hole 22 is filled with sound insulation material.

[0033] When the diesel generator set 3 is working, the soundproof cover 5 can effectively block the propagation of noise. At the same time, the diesel generator set 3 can dissipate heat through the silencer duct 13, and the current limiting plate 15 and the silencer 14 can silence the airflow in the silencer duct 13 to a certain extent.

[0034] When the diesel generator set 3 is working, horizontal vibration will be generated, thereby driving the transmission rod 71 to vibrate horizontally, so that the transmission rod 71 swings back and forth along the support rod 20, and the transmission rod 71 drives the transmission tooth segment 72 to swing synchronously. Since the distance from the end of the transmission rod 71 close to the diesel generator set 3 to its own hinge point is smaller than the distance from the end of the transmission rod 71 close to the transmission tooth segment 72 to its own hinge point, it can achieve a small range of swing to a large range of swing of the transmission tooth segment 72. During the swinging process of the transmission tooth segment 72, the gear ring 6 and the rotating ring 4 will be driven to swing back and forth, and then the rotating ring 4 drives the sound insulation cover 5 to rotate back and forth within a certain range, so that the sound insulation cover 5 is always dynamic. The first sound-absorbing layer at the multiple protrusions 51 and the recesses 52 on the inner wall of the cover body 50 helps to fully absorb and scatter the multiple noise sources of the diesel generator set 3 and the unevenly distributed noise to reduce the reflection of the noise. It can help to eliminate and soundproof during the operation of the diesel generator set 3 to reduce the interference to the surrounding construction personnel and ensure the comfort of the construction environment to a certain extent.

[0035] The present application also discloses a method for constructing electromechanical equipment for noise reduction and vibration reduction. The method for constructing electromechanical equipment comprises the following steps: Step 1: Install a machine room 16 at a desired location on the construction site, and sequentially install a base 2 and a fixed ring seat 1 in the machine room 16, wherein the fixed ring seat 1 is pre-set with a rotating ring 4 and a driving assembly; Step 2: Install the diesel generator set 3 on the base 2, and fix the end of the transmission rod 71 in the driving assembly away from the rotating ring 4 to the diesel generator set 3 through the connecting ear and bolts, and the transmission tooth segment 72 is meshed with the gear ring 6; Step 3: Align the connecting piece 8 of the cover body 50 with the slot 9 of the rotating ring 4, align the limiting piece 10 with the limiting groove 11, move the cover body 50 downward, make the connecting piece 8 and the slot 9 plug-fit, and the limiting piece 10 and the limiting groove 11 snap-fit, so that the cover body 50 is installed on the rotating ring 4, and the sound insulation cover 5 formed by the two cover bodies 50 is arranged outside the diesel generator set 3, and the exhaust pipe of the diesel generator set 3 passes through the through hole 22, and the through hole 22 is filled with sound insulation material; Step 4: Weld the silencer duct 13 at the vent 12 of the cover body 50 , and install the muffler 14 on the silencer duct 13 .

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sound-absorbing and vibration-reducing electromechanical device, characterized in that: The invention comprises a fixed ring seat (1), a base (2) and a diesel generator set (3) mounted on the base (2), wherein the base (2) is located in the fixed ring seat (1), a rotating ring (4) is arranged on the fixed ring seat (1) for rotation in a vertical direction, the diesel generator set (3) is located in the rotating ring (4), a soundproof cover (5) is detachably connected to the rotating ring (4), the diesel generator set (3) is located in the soundproof cover (5), the inner wall of the soundproof cover (5) has a plurality of protrusions (51) and depressions (52), the inner wall of the soundproof cover (5) is covered with a first sound absorbing layer, and the fixed ring seat (1) is provided with a driving component for driving the rotating ring (4) to drive the soundproof cover (5) to rotate.

2. The electromechanical device for noise reduction and vibration reduction according to claim 1, characterized in that: The driving assembly comprises a gear ring (6) arranged on a rotating ring (4) and a transmission member (7) arranged on a fixed ring seat (1); the gear ring (6) is arranged concentrically with the rotating ring (4); and the transmission member (7) is used to drive the gear ring (6) to swing back and forth when the diesel generator set (3) vibrates horizontally.

3. The electromechanical device for noise reduction and vibration reduction according to claim 2, characterized in that: The transmission member (7) comprises a transmission rod (71) hinged on a fixed ring seat (1) and a transmission tooth segment (72) arranged on the transmission rod (71); the hinge axis of the transmission rod (71) is parallel to the rotation axis of the rotating ring (4); the transmission tooth segment (72) is meshed with the gear ring (6); and one end of the transmission rod (71) away from the transmission tooth segment (72) is connected to the diesel generator set (3).

4. The electromechanical device for noise reduction and vibration reduction according to claim 3, characterized in that: The distance from one end of the transmission rod (71) close to the diesel generator set (3) to its own hinge point is smaller than the distance from one end of the transmission rod (71) close to the transmission tooth segment (72) to its own hinge point.

5. The electromechanical device for noise reduction and vibration reduction according to claim 1, characterized in that: The soundproof cover (5) comprises two cover bodies (50) connected to each other, the protrusion (51) and the recess (52) are both arranged on the inner wall of the cover body (50), the cover body (50) is provided with a connecting piece (8), the rotating ring (4) is provided with a slot (9) for plugging and matching with the connecting piece (8), the connecting piece (8) is provided with a limiting piece (10), the inner wall of the slot (9) is provided with a limiting groove (11) for snap-fitting with the limiting piece (10), the top ends of the two cover bodies (50) are provided with a notch (21) on one side close to each other, the two notches (21) form a through hole (22), and the through hole (22) is for the exhaust pipe of the diesel generator set (3) to pass through.

6. The electromechanical device for noise reduction and vibration reduction according to claim 5, characterized in that: The cover body (50) is provided with a vent (12), the vent (12) is connected to a muffler air duct (13), a muffler (14) is provided on the muffler air duct (13), two groups of flow limiting groups are arranged opposite to each other in the muffler air duct (13), each group of the flow limiting groups comprises a plurality of flow limiting plates (15) arranged at intervals along the length direction of the muffler air duct (13), and the flow limiting plates (15) of the two groups of the flow limiting groups are arranged in a staggered manner.

7. The electromechanical device for noise reduction and vibration reduction according to claim 6, characterized in that: A second sound absorbing layer is provided on the current limiting plate (15).

8. The electromechanical device for noise reduction and vibration reduction according to any one of claims 1 to 7, characterized in that: The electromechanical equipment for noise reduction and vibration reduction also includes a machine room (16), wherein the base (2) and the fixed ring seat (1) are both installed in the machine room (16), and a sound insulation layer (17) is provided on the inner wall of the machine room (16).

9. The electromechanical device for noise reduction and vibration reduction according to claim 8, characterized in that: A vibration damping seat (18) is arranged in the machine room (16); the vibration damping seat (18) is located in the fixed ring seat (1); and the base (2) is arranged on the vibration damping seat (18).

10. A construction method for electromechanical equipment with noise reduction and vibration reduction as claimed in any one of claims 1 to 9, characterized in that: The steps include: The base (2) and the fixed ring seat (1) are sequentially installed at the required position of the construction site, wherein the fixed ring seat (1) is provided with a rotating ring (4) and a driving assembly; Installing a diesel generator set (3) on the base (2); A soundproof cover (5) is installed on the rotating ring (4), and the soundproof cover (5) is arranged outside the diesel generator set (3).

Images